i am not soo sure about how lsd effects anxiety.. i might think that when you really start flying, you may have a little anxiety at first till you just remind yourself that it is the acid that is doing this to you and in a few hours everything gonna be alright... if i were you i would try and google that and see what you come up with..
now saying all of this, i have to say that i have eaten my fair share of paper.. acid... and have never once had a bad trip.. i don't even know what a bad trip is.. i just always thought that this was something made up by the people running the drug war and stuffs. .. but i could be wrong..
a lil about lsd... it usually comes on slowly in about a half an hour, and by an hour you will be feeling it quiet nicely.. and two to three hours you will be peaking which may last for another hour or two with a smooth comedown.. first affects maybe giddiness, feeling the acid flowing through your body, muscles getting loose, etc... the harder it comes on you will start to see what is called trails... things that move continue to move in crazy ways... depending on the quality of the acid, you may see things start to like breath.. if you look at things that just look like they have motion standing stll.. like maybe curtains. old vw bettles.. they will look like they are moving when you know well that is not possible... music sounds incredible when on acid.. i really like the beatles and anything psychodelic is great to listen to when tripping.... sometimes when i have tripped hard, i have seen like normal things just break out into like a binary code and fractals.. very kool stuff..
i always loved acid, and don't think that it would really screw anyone up, but this is just my opinion... the thing about acid is it can last a very long time, so you will want to make sure that you are somewhere that is chill, and around other experienced trippers, or maybe even someone who isn't dosing that can keep an eye on you and talk you down if anything were to go wrong... i think if stuff does get a little intense, you just need to remind yourself that all is good, and in a few hours you will be back to your normal self...
i have also found lsd to be like very philosical... you will talk about the meaning of life and other great stuff that one never usually gets that deep into without a little help, lol..
i won't tell you to do it or not to do it, as i am not a pusher of anykind.. but if you find the thought of opening up your mind and body to things that you have never seen, or felt, and are willing to be openminded about it and willing to have a great time in a safe environment.. than lsd is a drug to try..
i had once found a website that listed all kinds of drugs and the effects of them and then had peoples personal stories of when they tried the drugs, and found it to be a pretty good source for some info..
hope this helps you out some, but in all reality, to dose or not to dose is up to you..